1;------------------------------------------------------------------------------ 2; 3; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR> 4; Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR> 5; This program and the accompanying materials 6; are licensed and made available under the terms and conditions of the BSD License 7; which accompanies this distribution. The full text of the license may be found at 8; http://opensource.org/licenses/bsd-license.php. 9; 10; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12; 13; Module Name: 14; 15; InterlockedCompareExchange16.Asm 16; 17; Abstract: 18; 19; InterlockedCompareExchange16 function 20; 21; Notes: 22; 23;------------------------------------------------------------------------------ 24 25 SECTION .text 26 27;------------------------------------------------------------------------------ 28; UINT16 29; EFIAPI 30; InternalSyncCompareExchange16 ( 31; IN volatile UINT16 *Value, 32; IN UINT16 CompareValue, 33; IN UINT16 ExchangeValue 34; ); 35;------------------------------------------------------------------------------ 36global ASM_PFX(InternalSyncCompareExchange16) 37ASM_PFX(InternalSyncCompareExchange16): 38 mov ecx, [esp + 4] 39 mov ax, [esp + 8] 40 mov dx, [esp + 12] 41 lock cmpxchg [ecx], dx 42 ret 43 44